Journal
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume 27, Issue 8, Pages 2115-2125Publisher
SPRINGER
DOI: 10.1007/s10008-023-05481-2
Keywords
Alkaline metal fluorides; Thin films; Electrodeposition; Lanthanides; Down-conversion
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Alkaline earth fluorides (MF2) and MF2:Eu3+ doped (M = Mg, Ca, Sr) thin films were obtained by electrochemical processing in this study. Experiments were conducted within specific electrodeposition potential ranges to determine the optimized deposition conditions for each MF2 system. The results on morphology, chemical composition, structure, and optical properties of the thin films are presented. Thermal annealing at 550 degrees C for 2 hours in an N-2 atmosphere was performed to improve crystallinity and enhance photoluminescence response in MF2:Eu3+ (16.66 mol %) thin films. Photoluminescence studies were conducted with an excitation wavelength of 280 nm, and the CIE chromaticity diagram showed the expected red-light emission for MF2:Eu3+ (16.66 mol %).
In this study, alkaline earth fluorides (MF2) and MF2:Eu3+ doped (M = Mg, Ca, Sr) thin films were obtained by electrochemical processing. In order to figure out the optimized deposition conditions, several experiments were performed within specific electrodeposition potential ranges for each MF2 system. Results on the morphology, chemical composition, structural, and optical properties of MF2 and MF2:Eu3+ doped thin films are presented in this work. All samples were subjected to a thermal annealing process at 550 degrees C for 2 h in an N-2 atmosphere to improve the samples' crystallinity and to promote an increase in the photoluminescence response in MF2:Eu3+ (16.66 mol %) thin films. Photoluminescence studies were performed by using an excitation wavelength of 280 nm, and the CIE chromaticity diagram for MF2:Eu3+ (16.66 mol %) exhibits the expected red-light emission.
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